《教复习四大时态》PPT课件.ppt

英语四大时态 在英语中 不同时间发生的动作或存在的状态要用不同的动词形式来表现 四种时态的概念 关健词 结构 句式变化 以及某些时态间的相互区别 重点掌握 时态 Tense 时态 现在进行时 一般现在时 一般过去时 现在正在进行的动作 经常或习惯性的动作或存在的状态 过去某个时间或时间段发生的动作或存在的状态 一般将来时 未来的动作或状态 知识再现 四时态含义的比较 四时态常用的标志词比较 现在进行时 一般现在时 一般过去时 now Look Listen atthistime Whereis Don ttalk It s8 00am always usually often sometimes never 含every的短语 once twice threetimesaday onSundays inthemorning 条件状语从句和时间状语从句中 客观真理 含yesterday last ago的短语 in 过去的年份 justnow amomentago 一般将来时 含tomorrow next的短语 in 时间段 in 将来的年份 howsoon and和or所在的并列句中 if引导的条件状语从句的主句中 atonce rightnow rightaway inaminute moment 训练一 判断下列信息词是属于哪种时态 lastnightnoweverydayLook yesterdayoftenListen twoyearsagoalwaysin1897threetimesaweekin2014in100yearshowsoon 一般现在时一般过去时现在进行时一般将来时 表格对比 was wereV 过去式Therewas were n am is areV 原形或三单Thereis are n am is are v ingThereis are n v ing will shall v 原形am is are goingto v 原形am is are v ingTherewillbe n Thereis aregoingtobe n 含yesterday last ago的短语 in 过去的份justnow amom always usually often sometimes never 含every的短语 once twice threetimesaday onSundays inthemorning now Look Listen atthistime Whereis Don ttalk It s8 00am 含tomorrow next的短语 in 时间段 in 将来的年份 howsoon and和or所在的并列句中 if引导的条件状语从句中 atonce rightnow rightaway inaminute 现在分词的构成 动词第三人称单数的构成 过去式的构成 直接加 ing 重读辅元辅 双写尾字母加 ing 以不发音的e结尾去e加 ing 特殊 lie lyingdie dying 直接加 s 以s x ch sh o结尾加 es 以 辅音 y 结尾变y为i再加 es 直接加 ed 以e结尾只加d 重读辅元辅 双写尾字母再加 ed 以 辅音 y 结尾变y为i再加 ed 特殊 见不规则动词表P16 17 动词原形 动词不同形式的构成 现在分词 第三人称单数 过去式 fall play give have go do watch finish study wish need dance carry try stay plan stop kid drop trek destroy fallsplaysgiveshasgoesdoeswatchesfinishesstudieswishes neededdancedcarriedtriedstayedplannedstoppedkiddeddroppedtrekkeddestroyed 训练三 词形转换 look give study die lie chatcutputletsetgetsitfitstopshopdropplanbeginrunforgetswimwintrekdigpreferkid 先双写末尾的辅音字母在加ing looking giving studying dying lying 训练二 判断时态 Healwayslikesplayingthepiano WearehavinganEnglishclassesnow Theyoftengohomelate Lucydancedthediscoatthepartylastnight IlikedgoingtothezoowhenIwasyoung Myteacherisfriendlytous Look Theyareplayingfootball Shewasbornin1990 Ilostmuchmoneylastnight IamgoingtobeatopstudentifIstudyhard HewillteachusEnglishthisterm A 现在进行时B 一般现在时C 一般过去时D 一般将来时 A B C A B B C C C D D 再现句型变化规则 改一般疑问句的方法 一 找 找be动词 助动词或情态动词 将它提到句首并大写 句末打问号 注 am变are二 加再还原 找不到就加 在句首加Do Does Did 看原句的动词形式来决定加助动词 再将句中的谓语动词要还原注 其中some变any something变anything I变you my变your mine变yours ours变yours already变yet 改否定句的方法 一 找 找be动词 助动词或情态动词 若有就在它的后面加not 缩写为 isn t aren t wasn t weren t won t shan t wouldn t shouldn t can t mustn t needn t haven t hasn t hadn t二 加再还原 找不到就加don t doesn t didn t 在主语后面加 看原句的动词形式来决定加那一个 再将句中的谓语动词要还原注 其中some变any something变anything and变or I变you my变your mine变yours too变eitherours变yours already变yet 否定句的特殊情况 1 hadbetter hadbetternot2 tellsb asksb remember fortettodosth tellsb asksb remember forgetnottodosth 3 Ihope believe guess Ifso Ihope believe guess IfnotIthinkso Idon tthinkso4 both and neither norall noneeverything nothingeverybody nobodyeveryone none noone Therewillbeallkindsofrobotsinpeople shomesinthefuture 2 KangkangcomesfromChina 3 Iusuallytakethebustowork 4 Iwasintheclassroomatthistimeyesterday 5 Janeplayedtheguitarlastnight 先 一般疑问句 再 否定句 Willtherebe Therewon tbe DoesKangkangcomefromChina Kangkangdoesn tcomefromChina Doyouusuallytakethebustowork Idon tusuallytakethebustowork Wasyouintheclassroomatthistimeyesterday Iwasn tintheclassroomatthistimeyesterday DidJaneplaytheguitarlastnight Janedidn tplaytheguitarlastnight 训练四 句型变化操练 6 Theworkerswillbuildanewschoolherenextyear7 Iamgoingtostudysomethingnewnextterm 8 Iwasveryhappyonmylastdayoff 8 Ididhishomeworkjustnow 9 Theyoftendotheirhomeworkafterclass 10 HedoeshishomeworkathomeeverySunday 11 Heisdoinghishomeworknow 12 Hewilldohishomeworkafterschool 13 Heisgoingtodohishomeworkthisevening Theworkerswon tbuildanewschoolherenextyear Willtheworkersbuildanewschoolherenextyear Iamnotgoingtostudyanythingnewnextterm Areyougoingtostudyanythingnewnextterm Whatdidyoudojustnow Whatdotheyoftendoafterclass WhatdoeshedoathomeeverySunday Whatishedoingnow Whatwillhedoafterschool Whatishegoingtodothisevening Iwasn tveryhappyonmylastdayoff Wereyouveryhappyonyourlastdayoff 用所给动词的适当形式填空 1 Listen Mary sing now 2 Ayoungman run ontheplaygroundnow 3 Mymother watch TVplayeveryday 4 OldBush visit Chinaagainlastmonth 5 I play sportsthreetimesaday 6 Look LucyandLily read books 7 There is afootballmatchyesterdayafternoon 8 Ourclass go tothezoothreedaysago 9 he fly akitenextSaturday 10 We climb thehillifit notrain tomorrow issinging isrunning watches visited play arereading was went Willfly willclimb doesn train 改错 1 Wewerewenttoschoolonthebusyesterday 2 Thereisgoingtohaveasportsmeetinginourschooltomorrow 3 Yourdressislooksnice doesn tit 4 Hereadedaninterestingbooklastnight 5 Ifitwon traintomorrow we llgocamping 6 We llgoingtotakeawalkinthepark wearegoingtotakeawalkinthepark 7 Sometimesshedoesn therhomeworkonweekdays Sometimesshedoesn tdoherhomeworkonweekdays be Ifitdoesn traintomorrow we llgocamping 短文填空 ProudofMySchoolOneyearago ourschoolwasverysmall Therewas oneoldbuildingandasmallplayground Westudiedandlivedhere Butnow ourschoolisverybig severalnewtallbuildings Wehaveabeautifulplaygroundwithlotsoftreesaroundit Therearemanyflowerseverywhere Mybusyschoollifealways mehappy Ihavelotsoffun Inotonlyhaveallkindsofclasses butalsotakepartincolorfulactivitiesafterclasses Iplaygamesanddoalotofsports likeplayingbasketball football tennisandtabletennis Iloveourschoolbecauseit slikeabig Thestudentsarefriendlyandtheteachersareaskindtousasourparents Ifeelproudofourschool Ithinkit soneofthebestschoolsinmyheart NowIamstudyingallsubjectshard I m myschoolthisyear I llnever thedaysIspenthere only with makes family leaving forget Homework 写你的过去 现在和将来 Threeyearsago Iwasa ButnowIama Inthefuture I ll